. "loss of oxygen" . . "Oxygen deficiency" . "6623" . "anoxic conditions" . "hypoxic environment" . "insufficient oxygen in the bloodstream" . . . "799.02" . "chronic hypoxia" . "low blood oxygen saturation" . "oxygen starvation" . "oxygen deprivation" . . "deprivation of oxygen" . . "Hypoxic" . . . "'''H'''ypoxia" . . . . "too little oxygen reaching the body's tissues" . . "hypoxia's" . . . "deadly attempts" . "low oxygen" . . "symptoms" . . "too low" . . "D000860" . "deficiency" . "ischaemic" . "low blood oxygen level" . "antihypoxic agent" . "hypoxic brain injury" . "loss of oxygen in tissue" . "relative lack of oxygen" . . "oxygen shortage" . . . "low oxygen levels" . . "hypoxia" . "hypoxic injury" . "tissue hypoxia" . "Hypoxia (medical)" . . . . "Extreme hypoxia" . "hypoxemia" . "oxygen deficiency" . . "altitude hypoxia" . . . . . . . . "hypoxic challenge" . . "anoxia" . . . . . . "or hypoxia" . "insufficient oxygen to body tissues" . . . "Hypoxia (medical)" . . . "Inadequate delivery of oxygen to the body's cells" . . . . . . . . . . . . . . . . . "extreme hypoxia" . . . . . . . "shortage of oxygen" . . "hypoxic damage" . . . "Hypoxemia" . "J96" . "cellular hypoxia" . "blacked out from lack of oxygen" . "low blood oxygen levels" . "hypoxaemia" . . "lacks oxygen" . "lack of oxygen" . "Hypoxia_(medical)" . "hypoxic" . . "Anoxic" . "blue" . "low amount of oxygen" . "hypoxia (medical)" . "starved" . "lack of oxygenation" . "shortness of breath" . "low oxygen saturations" . . "hypoxic response" . "Anoxia" . . . "hypoxemic" . . "deprive the patient of oxygen" . "Crew incapacitation" . "central nervous system hypoxia" . "Hypoxic stress" . . "inadequate delivery of oxygen" . "reduced oxygen delivery" . . . "anoxic" . "hypoxic conditions" . "Low oxygen levels" . . "low blood oxygen" . "hypoxic brain injuries" . . . "Hypoxia" . "blacked out from a lack of oxygen" . "Gangrene,necrosis" . "oxygen deprivation issues" . . . "tissue death" . . "without oxygen" .